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Operating System question

Consider the following set of processes, with the length of the CPU burst given in milliseconds: Process Burst time Priority MOA B D E 2 1 8 4 5 2 1 4 2 3 cu a. Draw Gantt charts that illustrate the execution of these processes using the following scheduling algorithms: SRTF, and preemptive priority (a larger priority number implies a higher priority). b. What is the turnaround time and waiting time of each process for each of the scheduling algorithms in part a? Find out total number of context switches